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Irruputuncu volcano

stratovolcano 5163 m / 16,939 ft
Northern Chile, Bolivia and Argentina, South America, -20.73°S / -68.55°W
Current status: dormant (1 out of 5)
Irruputuncu volcano books
Typical eruption style: explosive/effusive
Irruputuncu volcano eruptions: 1995
TimeMag. / DepthDistanceLocation
Wed, 22 Nov
Wed, 22 Nov 22:30 UTCM 3.2 / 125.4 km23 km16 km al S de Mina Collahuasi
Wed, 22 Nov 18:31 UTCM 3.3 / 105.9 km35 km37 km al NO de Mina Collahuasi
Wed, 22 Nov 04:00 UTCM 4.3 / 103 km45 km42 km al E de Pica
Tue, 21 Nov
Tue, 21 Nov 19:42 UTCM 2.9 / 106.7 km42 km35 km al SO de Mina Collahuasi
Mon, 20 Nov
Mon, 20 Nov 20:10 UTCM 3.4 / 105 km39 kmTARAPACA, CHILE
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Irruputuncu is a small stratovolcano in northern Chile on the border with Bolivia. It contains 2 summit craters. A small summit lava dome and fumarolic activity are found at the southern crater which measures about 300 m in diameter.

Background:

Irruputuncu is the youngest and most southerly of a NE-SW-trending chain of volcanoes. It was was constructed within the collapse scarp left by a debris avalanche which removed part of the SW flank less than 10,000 years ago.
Later eruptions have filled much of this scarp and produced thick, viscous lava flows on the western flank.

1995 eruption
A small phreatic eruption occurred on 26 November 1995 and ejected dark ash plumes above the summit. This was the first confirmed historic activity of Irruputuncu volcano.

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